中国科学院机构知识库网格系统: 检索

Photosystem I photoinhibition induced by fluctuating light depends on background low light irradiance 期刊论文 OAI收割
ENVIRONMENTAL AND EXPERIMENTAL BOTANY, 2021, 卷号: 181, 页码: 104298
作者: Tan,Shun-Ling; Huang,Jia-Lin; Zhang,Feng-Ping; Zhang,Shi-Bao; Huang,Wei

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收藏 | 浏览/下载：43/0 | 提交时间：2022/04/02

Cyclic electron transport Photoprotection Photosynthesis Proton gradient Reactive oxygen species CYCLIC ELECTRON FLOW PROTON MOTIVE FORCE THYLAKOID MEMBRANES CO2 ASSIMILATION TRANSPORT LEAVES PSI PHOTOPROTECTION PHOTOSYNTHESIS ACCLIMATION

Introgression between Betula tianshanica and Betula microphylla and its implications for conservation 期刊论文 OAI收割
PLANTS PEOPLE PLANET, 2021, 卷号: 3, 期号: 4, 页码: 363-374
作者: Ding,Junyi; Hua,Donglai; Borrell,James S.; Buggs,Richard J. A.; Wang,Luwei

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收藏 | 浏览/下载：68/0 | 提交时间：2022/04/02

Betula microphylla birch conservation ecological niche modelling genetic structure hybridization introgression species record MICROSATELLITE MARKERS DWARF BIRCH HYBRIDIZATION EVOLUTION FRAMEWORK SPECIATION DISCOVERY PUBESCENS TRANSPORT SEQUENCE

Growing-season temperature and precipitation are independent drivers of global variation in xylem hydraulic conductivity 期刊论文 OAI收割
GLOBAL CHANGE BIOLOGY, 2019, 页码: 9
作者: He, Pengcheng; Gleason, Sean M.; Wright, Ian J.; Weng, Ensheng; Liu, Hui

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收藏 | 浏览/下载：107/0 | 提交时间：2020/05/19

biome climate functional types hydraulic diversity species distribution water transport

食用蔬菜能吸收和积累微塑料 期刊论文 OAI收割
科学通报, 2019, 卷号: 64, 期号: 9, 页码: 928-934
作者: 李连祯; 周倩; 尹娜; 涂晨; 骆永明

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收藏 | 浏览/下载：146/0 | 提交时间：2020/06/17

微塑料生菜聚苯乙烯微球吸收积累健康风险 microplastics lettuce polystyrene microbeads uptake accumulation human health risk Microplastic (MP, 100 nm-5 mm) may present an attributable risk to ecosystem and human health, and its pollution has become a global environmental concern. Despite a wealth of information on the accumulation of MPs in aquatic species, there is no information on the uptake and accumulation of MPs by higher plants. Terrestrial edible plants are directly exposed to MPs when agricultural soil was applied with organic manure, sewage sludge as fertilizer or plastic mulching. In this paper, the uptake of two sizes of polystyrene (PS) microbeads (0.2 and 1.0 mum) and then their distribution and migration in an edible plant lettuce were firstly investigated based on laboratory experiments. We used fluorescent markers to track PS microbeads in plant tissues and found fluorescence to be a sensitive and reliable detection method. Sections from untreated control lettuce showed no autofluorescence. When roots were treated with fluorescently labeled PS microbeads, the microbeads could be identified by its fluorescence. Our main study investigated the uptake of 0.2 mum beads, as few luminescence signals were observed in lettuce roots for 1.0 mum beads in our experiment. We observed that 0.2 mum fluorescent microbeads were extracellularly trapped in the root cap mucilage (which is a highly hydrated polysaccharide) and a dark green tip (which was typical of lettuce roots exposed to label PS beads) was usually visible to the naked eye. Confocal images revealed that the PS luminescence signals were mainly located in the vascular system and on the cell walls of the cortex tissue of the roots, indicated that the beads passed through the intercellular space via the apoplastic transport system. Once inside the central cylinder, the 0.2 mum PS beads were transferred from the roots to the stems and leaves via the vascular system following the transpiration stream. We also observed that the PS beads adhered to one another and self-assembled systematically into grape-like and (chain) string-like clusters in the intercellular space of the root and stem vascular tissue of lettuce plant. In contrast to the root and stem, PS beads were dispersed in the leaf tissue. Here, for the first time we provide evidence of the adherence, uptake, accumulation, and translocation of submicrometer MPs within an edible plant. Our findings highlight the previously underappreciated human exposure pathway to MPs through the consumption of contaminated crops and emphasize the need for new management strategies to control the release of MPs waste products into the terrestrial environment. Ultimately, the potential impacts of low range sized MPs on food safety of crop plants and human health need to be urgently considered.

Mitochondrial electron transport chain is involved in microcystin-RR induced tobacco BY-2 cells apoptosis 期刊论文 OAI收割
JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA, 2014, 卷号: 26, 期号: 9, 页码: 1930-1935
作者: Huang, Wenmin; Li, Dunhai; Liu, Yongding

收藏 | 浏览/下载：30/0 | 提交时间：2015/01/20

Microcystin-RR Tobacco BY-2 cells Apoptosis Reactive oxygen species Mitochondrial electron transport chain

Intestinal Transport of Pure Diester-type Alkaloids from an Aconite Extract across the Caco-2 Cell Monolayer Model 期刊论文 OAI收割
planta medica, 2012, 卷号: 78, 期号: 7, 页码: 692-697
作者: Li, Na; Tsao, Rong; Sui, Zhigang; Ma, Jingwei; Liu, Zhiqiang

收藏 | 浏览/下载：18/0 | 提交时间：2013/10/11

Aconitum species Ranunculaceae Aconitum alkaloids intestinal transport Caco-2 cell monolayer P-glycoprotein

全钒氧化还原液流电池流场及其传质模拟研究 学位论文 OAI收割
硕士, 北京: 中国科学院金属研究所, 2012
田野

收藏 | 浏览/下载：136/0 | 提交时间：2013/04/12

钒电池流场结构传质计算机模拟二次开发 vanadium redox flow battery flow field species transport simulation further development

Thickness And Component Distributions Of Yttrium-Titanium Alloy Films In Electron-Beam Physical Vapor Deposition 期刊论文 OAI收割
Science In China Series E-Technological Sciences, 2008, 页码: 1470-1482
作者: Li SH(李帅辉); Shu YH(舒勇华); Fan J(樊菁)

收藏 | 浏览/下载：401/45 | 提交时间：2009/08/03

Electron Beam Physical Vapor Deposition Thin Film Thickness And Species Distributions Vapor Atom Nonequilibrium Transport Monte-Carlo-Simulation Sphere Model Evaporation

Thickness and component distributions of yttrium-titanium alloy films in multi-electron-beam physical vapor deposition 会议论文 OAI收割
Vacuum Metallurgy and Surface Engineering, Proceedings/真空冶金与表面工程——第八届真空冶金与表面工程学术会议, Shenyang, PEOPLES R CHINA, JUN 16-19, 2007
作者: Li SH(李帅辉); Shu YH(舒勇华); Fan J(樊菁)

收藏 | 浏览/下载：32/0 | 提交时间：2016/06/28

electron beam physical vapor deposition thin film thickness and species distributions vapor atom non-equilibrium transport KeyWords Plus:MONTE-CARLO-SIMULATION SPHERE MODEL EVAPORATION

Arsenic uptake and transport of Pteris vittata L. as influenced by phosphate and inorganic arsenic species under sand culture 期刊论文 OAI收割
JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA, 2007, 卷号: 19, 期号: 6, 页码: 714-718
作者: Lei Mei; Liao Xiao-yong

收藏 | 浏览/下载：274/60 | 提交时间：2011/06/10

arsenate arsenite As species Pteris vittata L. phosphate transport uptake